Sage Stuck fan relay / control logic fault

Fan never stops running after cooking has finished until the unit is unplugged.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Fan relay contacts welded closed, MCU output stuck high, Shorted driver transistor, Firmware glitch

How to Fix / Troubleshooting

Safety first: Unplug the unit before inspection. Do not leave it running unattended.

  • Power reset: Unplug for 10 minutes and retest. If the fan still runs continuously after a cycle, proceed to hardware checks.
  • Relay test: Locate the fan relay on the control PCB. With the unit unplugged, check if the relay contacts are stuck closed mechanically. Replace the relay or entire board if so.
  • Board replacement: Because relay replacement requires soldering and proper safety, most users should replace the entire control PCB.
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Repair Difficulty

Hard 4/5

Required Part

Main Control PCB
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